公开(公告)号：US20150320345A1

公开(公告)日：2015-11-12

申请号：US14803770

申请日：2015-07-20

Applicant: Roche Diagnostics Operations, Inc.

Inventor： Harvey Buck ,  Georgeta Lica ,  Karl-Heinz Koelker ,  Ewald Rieger

IPC: A61B5/1477

CPC classification number: A61B5/1477 ,  A61B5/1473 ,  A61B2560/0468 ,  A61B2562/043 ,  G01N27/327

Abstract: The present invention provides an electrochemical sensor that employs multiple electrode areas that are exposed for contact with a body fluid, e.g., when the sensor is inserted subcutaneously into a patient's skin. The exposed electrode areas are arranged symmetrically, such that a symmetrical potential distribution is produced when an AC signal is applied to the sensor. The sensors in accordance with these teachings can advantageously be used with AC signals to determine characteristics of the sensor and thus improve sensor performance. These teachings also provide a biocompatible sensor with multiple reference electrode areas that are exposed for contact with body fluid.

Abstract translation: 本发明提供一种电化学传感器，其采用暴露于与体液接触的多个电极区域，例如当传感器被皮下插入患者皮肤时。 暴露的电极区域对称地布置，使得当将AC信号施加到传感器时产生对称的电位分布。 根据这些教导的传感器可以有利地与AC信号一起使用以确定传感器的特性，从而提高传感器性能。 这些教导还提供具有暴露于体液接触的多个参考电极区域的生物相容性传感器。